Don't copy mime types in CLI server

This is both unnecessary and causes leaks in valgrind.

Author: nikic

sapi/cli/php_cli_server.c

@@ -2149,12 +2149,8 @@ static int php_cli_server_mime_type_ctor(php_cli_server *server, const php_cli_s
 	zend_hash_init(&server->extension_mime_types, 0, NULL, NULL, 1);
 
 	for (pair = mime_type_map; pair->ext; pair++) {
-		size_t ext_len = 0, mime_type_len = 0;
-
-		ext_len = strlen(pair->ext);
-		mime_type_len = strlen(pair->mime_type);
-
-		zend_hash_str_add_mem(&server->extension_mime_types, pair->ext, ext_len, (void*)pair->mime_type, mime_type_len + 1);
+		size_t ext_len = strlen(pair->ext);
+		zend_hash_str_add_ptr(&server->extension_mime_types, pair->ext, ext_len, (void*)pair->mime_type);
 	}
 
 	return SUCCESS;